with a degree in the field of healthcare or nursing from capella university, you'll have the knowledge to advance your career while making a difference in the lives of patients. let's get started at capella.edu. >>> it really is one of the most famous mysteries in hollywood history. the death of natalie wood, more than 30 years ago. her husband, robert wagner, one of the last people to see her alive. >> and now, with the case reopened, police say wagner is refusing to speak with them about it. abc's clayton sandell has the story. >> reporter: it's the hollywood tale of one mysterious night. actress natalie wood died in 1981 on a boating trip, with husband, robert wagner," and fellow actor, christopher walken. >> we think she fell outside and hit her head. >> reporter: the case was closed, accidental drowning. but reopened just a year ago, when the captain came forward. he claims that wagner and wood were in a heated argument before she died. >> they went to the state room. and they carried on arguing in the state room. >> reporter: the latest plot turn, the just-released coroner report